CN111891234B - Heat insulation carriage and manufacturing method thereof - Google Patents
Heat insulation carriage and manufacturing method thereof Download PDFInfo
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- CN111891234B CN111891234B CN202010812932.1A CN202010812932A CN111891234B CN 111891234 B CN111891234 B CN 111891234B CN 202010812932 A CN202010812932 A CN 202010812932A CN 111891234 B CN111891234 B CN 111891234B
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- heat insulation
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- framework
- outer carriage
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- 238000009413 insulation Methods 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 239000012774 insulation material Substances 0.000 claims abstract description 12
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 34
- 239000011496 polyurethane foam Substances 0.000 claims description 34
- 238000005507 spraying Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
- B62D33/048—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains for refrigerated goods vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Thermal Sciences (AREA)
- Refrigerator Housings (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a heat insulation carriage and a manufacturing method thereof, wherein the heat insulation carriage comprises an outer carriage body, a framework, a connecting bolt and an end plate; one end of the outer carriage body is provided with an opening, and the inner peripheral wall of the outer carriage body is provided with a first bolt hole; the framework is provided with a second bolt hole, and an inner skin is attached to the inner wall of the framework; one end of the main frame is connected with the inner side wall of one end, far away from the opening, of the outer carriage body through the end part support and the heat-breaking bridge, the other end of the main frame is flush with the opening end of the outer carriage body, a heat insulation cavity is arranged between the framework and the outer carriage body, and heat insulation materials are filled in the heat insulation cavity; the end plate cover is arranged at one end, close to the opening, of the heat insulation cavity, and the connecting bolt penetrates through the second bolt hole and stretches into the first bolt hole. The carriage of the invention has no fragile connecting mechanism, has high integral structural strength and is not easy to leak cold and water. The invention also provides a manufacturing method of the heat insulation carriage, which adopts a layered filling technology, is convenient to construct, can effectively avoid generating large cavities, does not need large-scale fixtures and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of refrigerated trucks, in particular to a heat insulation carriage and a manufacturing method thereof.
Background
In a traditional refrigerator carriage manufacturing process, an integral support structure is generally adopted, skins are attached to the inner side and the outer side of a support, and polyurethane foam is filled in a gap between the two layers of skins. The production process needs to use a large clamp to clamp two layers of skins, otherwise, the skins can be burst in the expansion process of polyurethane foam, and cavitation bubbles are easily generated between the polyurethane foam and the skins, so that the problems of cold leakage, poor bonding and the like are solved. And the external skin has low structural strength, cannot resist external force impact, is easy to generate gaps or leaks, leads to cold leakage and water leakage, and has short service life generally.
The other process is to splice and combine six sandwich composite material plates into a carriage main body and then to fasten and form the carriage main body at corners and joints by using sectional materials. In the moving process of a vehicle, strong vibration jolts to enable the joint and the corners to be subjected to larger shearing force, the service life of the connecting piece is not long, and the joint is easy to loosen to generate gaps, so that cold leakage and water leakage are caused.
At present, a relatively new manufacturing process adopts two integrally formed rectangular box structures, in the manufacturing process, an inner box body is suspended in an outer box body through a clamp, and then heat insulation materials are filled between the inner box body and the outer box body, so that the product is high in structural strength and not prone to water leakage. However, in the production engineering, because the volumes of the inner box body and the outer box body are large, the relative position between the inner box body and the outer box body is difficult to accurately ensure, and the positioning difficulty is large. In addition, the gap between the inner box body and the outer box body is deep, so that the gap is not easy to be fully filled with heat insulation materials, and the construction is complicated. Actual production results show that the finished product manufactured by the process still easily generates vacuoles, so that the heat insulation effect is poor, the connection strength between the inner box body and the outer box body is not high, the product quality is not easy to control, and the yield is not high.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the technical problems to be solved by the present invention are: improve carriage structural strength, reduce the construction degree of difficulty.
In order to solve the technical problems, the invention adopts the following technical scheme: a heat insulation carriage comprises an outer carriage body, a framework, a connecting bolt and an end plate; an opening is formed in one end of the outer carriage body, and a first bolt hole matched with the connecting bolt is formed in the inner peripheral wall of the outer carriage body;
the framework is arranged in the outer compartment body, the framework is provided with a second bolt hole matched with the connecting bolt, the second bolt hole is arranged corresponding to the first bolt hole, and an inner skin is attached to one side, far away from the outer compartment body, of the framework; the framework comprises an end part support and a main frame, wherein a heat-insulation bridge is arranged on one side of the end part support, which is far away from the main frame, one end of the main frame is connected with the inner side wall of the outer compartment body, which is far away from one end of the opening, through the end part support and the heat-insulation bridge, the other end of the main frame is flush with the opening end of the outer compartment body, a heat-insulation cavity is arranged between the framework and the outer compartment body, and heat-insulation materials are filled in the heat-insulation cavity; the end plate cover is arranged at one end, close to the opening, of the heat insulation cavity, the connecting bolt penetrates through the second bolt hole and stretches into the first bolt hole, and a nut of the connecting bolt is abutted to one side, far away from the outer compartment body, of the framework.
The outer carriage body is integrally formed and is made of glass fiber reinforced plastics.
The main frame comprises a plurality of frames, and the frames are sequentially connected end to end.
The heat insulating material is polyurethane foam.
The inner wall of the outer carriage body is provided with a heat insulation connecting seat, and the first bolt hole is formed in the heat insulation connecting seat.
The heat-insulating bridge and the heat-insulating connecting seat are made of wood.
And when the nut of the connecting bolt is abutted against one side of the framework, which is far away from the outer carriage body, the nut of the connecting bolt is positioned in the accommodating groove.
The invention also provides a manufacturing method of the heat insulation compartment, which comprises the following steps:
s1, manufacturing the outer carriage body, the end bracket and the frame according to the design size;
s2, enabling the opening of the outer carriage body to face the horizontal direction and be fixed, installing a heat insulation connecting seat at a position corresponding to the inner wall of the outer carriage body according to a design drawing, and drilling a first bolt hole on the heat insulation connecting seat;
s3, fixedly connecting the end support with the inner wall of the side, far away from the opening, of the outer carriage body, wherein the distances from all sides of the outer peripheral wall of the end support to the nearest inner peripheral wall of the outer carriage body are equal;
s4, inserting the connecting bolts into the second bolt holes on the periphery of the end part support and extending into the corresponding first bolt holes to enable nuts of the connecting bolts to be tightly abutted against the inner peripheral wall of the end part support, and then attaching an inner skin to one side, close to the opening, of the end part support;
s5, one frame is fixedly connected with the end support, and the distances from all sides of the outer peripheral wall of the frame to the nearest inner peripheral wall of the outer carriage body are equal;
s6, inserting the connecting bolts into the second bolt holes on the periphery of the frame and extending into the first bolt holes, enabling nuts of the connecting bolts to be tightly abutted against the inner peripheral wall of the frame, and then attaching the inner skin to the inner side of the frame;
s7, rotating the outer carriage body to enable the opening of the outer carriage body to be vertically upward and fixed, spraying a proper amount of polyurethane foam into the heat insulation cavity, after the polyurethane foam is fully expanded and solidified, enabling the height of the polyurethane foam to be slightly lower than the height of the top of the frame, and then rotating the outer carriage body to enable the opening of the outer carriage body to face the horizontal direction and be fixed;
s8, repeating the operations of S5, S6 and S7 for multiple times until the end part of the frame close to the opening is flush with the opening end of the outer carriage body, and enabling the height of the polyurethane foam after being fully expanded and solidified to be higher than the height of the top of the outer carriage body when a proper amount of polyurethane foam is sprayed into the heat insulation cavity for the last time;
s9, removing the polyurethane foam extending out of the heat insulation cavity part, and enabling the end part of the heat insulation material formed by solidifying the polyurethane foam to be flush with the opening end of the outer carriage body;
and S10, covering the end plate on a heat insulation cavity, and fixedly connecting the open end of the framework and the open end of the outer carriage body with the end plate to seal the heat insulation cavity.
Further, the end support comprises an outer frame and a support beam, and the support beam is fixedly arranged in the outer frame.
Further, still include the carriage door, the carriage door is installed in the opening part of the outer carriage body.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the outer part of the invention is an integrally formed glass steel outer carriage body, a fragile connecting mechanism does not exist, the structural strength is high, certain external force impact can be resisted, and the service life is long;
(2) the outer carriage body and the framework are connected into a whole through the connecting bolt and the polyurethane foam, the framework has a reinforcing effect on the outer carriage body, the overall structural strength of the carriage is high, and cold and water leakage is not easy to occur in strong vibration and bump;
(3) the inner framework is of a detachable layered structure, so that the inner framework can be conveniently positioned and installed in the outer carriage body, layered filling is adopted in the production process, gaps are not deep when polyurethane foam is filled each time, the construction is convenient, and large cavities can be effectively avoided;
(4) when the polyurethane foam heat insulation structure is filled, the open end of the heat insulation cavity faces upwards, and the polyurethane foam before solidification flows downwards under the action of gravity, so that the polyurethane foam heat insulation structure is fully filled into each gap, and the product quality is ensured;
(5) because the depth of filling polyurethane foam every time is all more shallow, heat-insulating cavity top is opened during the filling, provides sufficient space for polyurethane foam inflation, can not cause the damage to the covering among the polyurethane collision process, need not large-scale anchor clamps, has improved production efficiency, has reduced manufacturing cost.
Drawings
Fig. 1 is a schematic view of the position relationship between the outer car body and the framework.
Fig. 2 is a schematic structural diagram of the framework of the present invention.
Fig. 3 is a schematic view of the connection structure of the end bracket and the outer carriage body.
Fig. 4 is a schematic view of the connection structure of the frame and the outer carriage body.
Fig. 5 is a partially enlarged view of fig. 4 at the point of attachment of the bolt.
Fig. 6 is a front view of an end plate of the present invention.
Reference numerals:
1-outer carriage body, 11-opening, 12-first bolt hole, 13-heat insulation cavity, 14-accommodating groove, 15-heat insulation connecting seat, 2-framework, 21-second bolt hole, 22-end support, 23-main frame, 24-framework, 25-outer frame, 26-supporting beam, 27-heat insulation bridge, 3-connecting bolt, 4-end plate, 5-inner skin and 6-heat insulation material.
Detailed Description
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
a heat insulation compartment is shown in figure 1 and comprises an outer compartment body 1, a framework 2, a connecting bolt 3, a compartment door and an end plate 4 (shown in figure 6); outer railway carriage or compartment body 1 and skeleton 2 are rectangular cubic structure, outer railway carriage or compartment body 1 integrated into one piece, and the material of outer railway carriage or compartment body 1 is the glass steel, and the one end of outer railway carriage or compartment body 1 is equipped with opening 11, is equipped with disconnected hot connecting seat 15 (as shown in fig. 5) on the internal perisporium of outer railway carriage or compartment body 1, and disconnected hot connecting seat 15 adopts timber to make, and disconnected hot connecting seat 15 has greatly reduced the heat and has conducted for outer railway carriage or compartment body 1 through connecting bolt 3, has improved the heat preservation effect of equipment. A first bolt hole 12 matched with the connecting bolt 3 is arranged in the heat insulation connecting seat 15, and the first bolt hole 12 is a blind hole.
The framework 2 is arranged in the outer compartment body 1, the framework 2 is provided with a second bolt hole 21 matched with the connecting bolt 3, the second bolt hole 21 is a through hole, the second bolt hole 21 corresponds to the first bolt hole 12, and an inner skin 5 is attached to one side, far away from the outer compartment body 1, of the framework 2. As shown in fig. 2, the frame 2 includes an end bracket 22 and a main frame 23, a thermal bridge 27 is disposed on one side of the end bracket 22 away from the main frame 23, the thermal bridge 27 is made of wood, the end bracket 22 includes an outer frame 25 and a support beam 26, and the support beam 26 is fixedly disposed in the outer frame 25. One end of the main frame 23 is connected with the inner side wall of the end, far away from the opening 11, of the outer compartment body 1 through the end part support 22 and the heat insulation bridge 27, the other end of the main frame 23 is flush with the opening end of the outer compartment body 1, a heat insulation cavity 13 is arranged between the framework 2 and the outer compartment body 1, a heat insulation material 6 is filled in the heat insulation cavity 13, and the heat insulation material 6 is polyurethane foam; the end plate 4 covers the end of the heat insulation cavity 13 close to the opening 11, the connecting bolt 3 passes through the second bolt hole 21 and extends into the first bolt hole 12, and the nut of the connecting bolt 3 is abutted to one side of the framework 2 far away from the outer compartment body 1. The car door is installed at the opening 11 of the outer body 1, and the car door is used for closing the opening 11.
In this embodiment, in order to facilitate the installation of the framework 2, the main frame 23 includes a plurality of frames 24, and the plurality of frames 24 are connected end to end in sequence, that is, the ends of two adjacent frames 24 are fixedly connected by bolts. The outer peripheral dimension of the frame 24 is completely the same as the outer peripheral dimension of the outer frame 25, and the inner peripheral dimension of the frame 24 is also completely the same as the inner peripheral dimension of the outer frame 25. One side that the outer carriage body 1 was kept away from to skeleton 2 is equipped with the storage tank 14 with second bolt hole 21 intercommunication, and when the nut of connecting bolt 3 and the one side butt that the outer carriage body 1 was kept away from to skeleton 2, the nut of connecting bolt 3 was located storage tank 14, avoided the outstanding interior skin 5 installation of influence of connecting bolt 3.
The invention also provides a manufacturing method of the heat insulation compartment, which comprises the following steps:
s1, manufacturing the outer carriage body 1, the end bracket 22 and the frame 24 according to the design size;
s2, the opening 11 of the outer carriage body 1 faces to the horizontal direction and is fixed, the heat insulation connecting seat 15 is installed at the corresponding position of the inner wall of the outer carriage body 1 according to the design drawing, and the first bolt hole 12 is drilled in the heat insulation connecting seat 15. The heat insulation connecting seat 15 is usually adhered to the inner wall of the outer carriage body 1 through the existing strong glue;
s3, fixedly adhering and connecting the end bracket 22 and the inner wall of the outer compartment body 1 at the side far away from the opening 11 by glue, wherein the distances from the edges of the outer peripheral wall of the end bracket 22 to the nearest inner peripheral wall of the outer compartment body 1 are equal (please refer to FIG. 3);
and S4, inserting the connecting bolt 3 into the second bolt holes 21 on the periphery of the end support 22 and extending into the corresponding first bolt holes 12, enabling the nut of the connecting bolt 3 to be tightly abutted against the inner peripheral wall of the end support 22, riveting the inner skin 5 on one side of the end support 22 close to the opening 11, and fixedly connecting the inner skin 5 with the support beam 26. The length of the first bolt hole 12 is provided with allowance, and within an error range, the nut of the connecting bolt 3 is tightly abutted against the inner peripheral wall of the end bracket 22 and cannot contact the bottom of the first bolt hole 12;
s5, fixedly connecting a frame 24 with the end bracket 22, wherein the distances from each side of the outer peripheral wall of the frame 24 to the nearest inner peripheral wall of the outer compartment body 1 are equal (please refer to FIG. 4);
s6, inserting the connecting bolt 3 into the second bolt hole 21 on the periphery of the frame 24 and extending into the first bolt hole 12, enabling the nut of the connecting bolt 3 to be tightly abutted against the inner peripheral wall of the frame 24, then riveting an inner skin 5 on the inner side of the frame 24, and enabling the inner skin 5 on the inner side of the frame 24 to be in close contact with the inner skin 5 on the end bracket 22 (shown in FIG. 5);
s7, rotating the outer carriage body 1 to enable the opening 11 of the outer carriage body 1 to be vertically upward and fixed, spraying a proper amount of polyurethane foam into the heat insulation cavity 13, after the polyurethane foam is fully expanded and solidified, enabling the height of the polyurethane foam to be slightly lower than that of the top of the frame 24, and then rotating the outer carriage body 1 to enable the opening 11 of the outer carriage body 1 to face the horizontal direction and be fixed, so that other frames 24 can be conveniently installed subsequently;
s8, repeating the operations of S5, S6 and S7 for a plurality of times until the end part of the frame 24 close to the opening 11 is flush with the opening end of the outer carriage body 1, and enabling the height of the polyurethane foam after being fully expanded and solidified to be higher than the height of the top of the outer carriage body 1 when a proper amount of polyurethane foam is sprayed into the heat insulation cavity 13 for the last time;
s9, removing the polyurethane foam extending out of the heat insulation cavity 13, and enabling the end part of the heat insulation material 6 formed by solidifying the polyurethane foam to be flush with the opening end of the outer compartment body 1;
and S10, covering the end plate 4 on the heat insulation cavity 13, and fixedly connecting the open end of the framework 2 and the open end of the outer compartment body 1 with the end plate 4 to seal the heat insulation cavity 13.
The volume change before and after polyurethane expansion can be obtained by looking up the data in the prior art and can be easily obtained by self experimental tests, thereby well controlling the height of the polyurethane after full expansion. When polyurethane is sprayed between the end bracket 22 and the outer box 1, the nozzle of the spraying equipment extends into the gap between the heat-insulating bridge 27, and after the polyurethane between the end bracket 22 and the outer box 1 is fully expanded, the polyurethane is sprayed between the frame 24 and the outer box 1. After the heat insulation carriage body is manufactured, other accessories such as a carriage door, a floor, a wind shielding strip, a mechanical refrigeration assembly and the like are installed.
The above is only a preferred embodiment of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.
Claims (3)
1. The manufacturing method of the heat insulation carriage is characterized in that the heat insulation carriage comprises an outer carriage body, a framework, a connecting bolt and an end plate; an opening is formed in one end of the outer carriage body, and a first bolt hole matched with the connecting bolt is formed in the inner peripheral wall of the outer carriage body;
the framework is arranged in the outer compartment body, the framework is provided with a second bolt hole matched with the connecting bolt, the second bolt hole is arranged corresponding to the first bolt hole, and an inner skin is attached to one side, far away from the outer compartment body, of the framework; the framework comprises an end part support and a main frame, wherein a heat-insulation bridge is arranged on one side of the end part support, which is far away from the main frame, one end of the main frame is connected with the inner side wall of the outer compartment body, which is far away from one end of the opening, through the end part support and the heat-insulation bridge, the other end of the main frame is flush with the opening end of the outer compartment body, a heat-insulation cavity is arranged between the framework and the outer compartment body, and heat-insulation materials are filled in the heat-insulation cavity; the end plate cover is arranged at one end, close to the opening, of the heat insulation cavity, the connecting bolt penetrates through the second bolt hole and extends into the first bolt hole, and a nut of the connecting bolt is abutted against one side, far away from the outer compartment body, of the framework;
the outer carriage body is integrally formed and is made of glass fiber reinforced plastics; the main frame comprises a plurality of frames which are sequentially connected end to end; the heat insulation material is polyurethane foam; the inner wall of the outer carriage body is provided with a heat insulation connecting seat, and the first bolt hole is arranged in the heat insulation connecting seat; the heat-insulation bridge and the heat-insulation connecting seat are made of wood; an accommodating groove communicated with the second bolt hole is formed in one side, away from the outer compartment body, of the framework, and when the nut of the connecting bolt is abutted against one side, away from the outer compartment body, of the framework, the nut of the connecting bolt is located in the accommodating groove;
the manufacturing method of the heat insulation compartment comprises the following steps:
s1, manufacturing the outer carriage body, the end bracket and the frame according to the design size;
s2, enabling the opening of the outer carriage body to face the horizontal direction and be fixed, installing a heat insulation connecting seat at a position corresponding to the inner wall of the outer carriage body according to a design drawing, and drilling a first bolt hole on the heat insulation connecting seat;
s3, fixedly connecting the end support with the inner wall of the side, far away from the opening, of the outer carriage body, wherein the distances from all sides of the outer peripheral wall of the end support to the nearest inner peripheral wall of the outer carriage body are equal;
s4, inserting the connecting bolts into the second bolt holes on the periphery of the end part support and extending into the corresponding first bolt holes to enable nuts of the connecting bolts to be tightly abutted against the inner peripheral wall of the end part support, and then attaching an inner skin to one side, close to the opening, of the end part support;
s5, one frame is fixedly connected with the end support, and the distances from all sides of the outer peripheral wall of the frame to the nearest inner peripheral wall of the outer carriage body are equal;
s6, inserting the connecting bolts into the second bolt holes on the periphery of the frame and extending into the first bolt holes, enabling nuts of the connecting bolts to be tightly abutted against the inner peripheral wall of the frame, and then attaching the inner skin to the inner side of the frame;
s7, rotating the outer carriage body to enable the opening of the outer carriage body to be vertically upward and fixed, spraying a proper amount of polyurethane foam into the heat insulation cavity, after the polyurethane foam is fully expanded and solidified, enabling the height of the polyurethane foam to be slightly lower than the height of the top of the frame, and then rotating the outer carriage body to enable the opening of the outer carriage body to face the horizontal direction and be fixed;
s8, repeating the operations of S5, S6 and S7 for multiple times until the end part of the frame close to the opening is flush with the opening end of the outer carriage body, and enabling the height of the polyurethane foam after being fully expanded and solidified to be higher than the height of the top of the outer carriage body when a proper amount of polyurethane foam is sprayed into the heat insulation cavity for the last time;
s9, removing the polyurethane foam extending out of the heat insulation cavity part, and enabling the end part of the heat insulation material formed by solidifying the polyurethane foam to be flush with the opening end of the outer carriage body;
and S10, covering the end plate on a heat insulation cavity, and fixedly connecting the open end of the framework and the open end of the outer carriage body with the end plate to seal the heat insulation cavity.
2. The method of manufacturing a heat-insulated vehicle compartment according to claim 1, wherein: the end support comprises an outer frame and a supporting beam, and the supporting beam is fixedly arranged in the outer frame.
3. The method of manufacturing a heat-insulated vehicle compartment according to claim 1, wherein: the carriage door is arranged at an opening of the outer carriage body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812932.1A CN111891234B (en) | 2020-08-13 | 2020-08-13 | Heat insulation carriage and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812932.1A CN111891234B (en) | 2020-08-13 | 2020-08-13 | Heat insulation carriage and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN111891234A CN111891234A (en) | 2020-11-06 |
| CN111891234B true CN111891234B (en) | 2021-07-30 |
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| CN202010812932.1A Active CN111891234B (en) | 2020-08-13 | 2020-08-13 | Heat insulation carriage and manufacturing method thereof |
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| CN210735116U (en) * | 2019-10-24 | 2020-06-12 | 中集冷链发展有限公司 | Floor of refrigerated container |
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| CN111891234A (en) | 2020-11-06 |
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